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I have a factory size piece of foam board about 20 x 28.  We had a bit of water seepage and the foam board has 'dished' in the middle.

I can cut the pieces I need for a card stock project, but the warp will still be present.  Is there a way to flatten foam board?  Should I do the procedure before or after cutting to the sizes I'll need.

Thank you,

John in Lansing, Ill

rattler21@sbcglobal.net

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Foamboard will straighten out when braced or glued down.

 

I've used it for sidewalks and foundations.  These were beginning to warp even after painting, but once glued down, they were fine:

SL 050801 02

 

SL 051228 02

 

The depot's foundation and platform are two layers of foamboard:

SL 050704 01

 

The roundhouse foundation began to curl up and seeing I may need to remove it if ever I get around to building the roundhouse, the ends were tacked down with small nails:

SL 071028 07

 

For structure walls, 1/4" x 1/4" wood bracing should take care of most issues.

 

Rusty

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Images (4)
  • SL 050801 02
  • SL 051228 02
  • SL 050704 01
  • SL 071028 07
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